For testing the spread and flow properties of SKB and AUV concrete.
NS-EN 12350-10 - Testing fresh concrete
Part 10 - Self-compacting concrete - L-box method
J-ring for testing SKB concrete
Models:
- Ø300mm, with 16 adjustable rods Ø18mm
- Ø300mm, with 16 fixed rods Ø18mm
Worktop for measuring the spread of SKB
Dimensions: 900x900mm
L-box for testing SKB concrete.
Can also be used for testing AUV concrete.
L-boks til laboratorieprøving og feltprøving av AUV-betong gitt i NS-EN 12350.10
Concrete is filled without compaction in the high part of the box. The hatch must be closed. The low part of the box is then filled with water. 5 minutes after concrete filling in the box has started, the hatch between the high and low parts of the box is opened.
• The time is measured from the hatch opening.
• The time until the concrete has reached the end wv of the box is recorded
• When all movement has stopped, the concrete height at the end of the box (h-) is recorded. This height increases slowly over time, so it is important to check that the height has become stable when recording.
Bevegelse i L-boks, typiske tidsintervall.
Adding AUV material makes the concrete significantly more viscous. AUV concrete with good flow properties will flow smoothly. The movement does not stop until the concrete surface is approximately horizontal.
